Rinnai R75LSe, R63LSe, R94LSe, R98LSe User Manual

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in your building. Immediately call your gas supplier from a neighbor,s phone. Follow the gas supplier,s instructions. If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.

Operation and Installation Manual

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

Table of Contents...................... 2

Consumer Safety Information ... 4

Operating Instructions ............... 5

Maintenance.............................. 12

Error Codes............................... 13

Installation Instructions.............. 17

Consumer Support .................... 38

R63LSe .............. REU-VA2024WD

R75LSe .............. REU-VA2528WD(A)

R94LSe .............. REU-VA2535WD

R98LSe .............. REU-VA3237W

R98LSe-ASME ... REU-VA3237W-ASME

Outdoor Tankless Water Heater

ANS Z21.10.3

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CSA 4.3

—

•

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2 VA Series Outdoor LS Manual

Specifications ..................................................... 3

Consumer Safety Information

Safety Definitions............................................. 4

Safety Behaviors and Practices ...................... 4

Safety Features ............................................... 4

Description of Operation ................................... 5

Operating Instructions

Features Available on Remote Controllers...... 5

Remote Controllers - Models........................

Setting the Temperature.................................. 8

Temperature Options Without

a Remote Controller ........................................ 8

Temperature Ranges....................................... 9

Setting the Sound Volume(Voice Prompt) ...... 9

Setting the Clock ............................................. 9

Using the Water Smart /Bath Fill Function .... 10

Overview ................................................... 10

Setting the Water Volume ......................... 10

Filling the Tub ........................................... 11

Setting Controller to Mute.............................. 11

Maintenance

Cleaning .................................................... 12

Air Intake and Exhaust.............................. 12

Motors ....................................................... 12

Remote Controller..................................... 12

Lime / Scale Buildup ................................. 12

Visual Inspection of Flame........................ 12

Snow Accumulation .................................. 12

Error Codes

Error Code Table ...................................... 13,14

Troubleshooting for Common Issues ............ 15

Accessing Operating Information .................. 15

Water Quality................................................. 15

Flushi (Error Code: LC or 00)

ng the Heat Exchanger

........................ 16

Installation Instructions ....................................17

General Instructions .......................................17

Clearances from Appliance ............................18

Attachment of the Water Heater.....................18

Electrical Connection......................................19

Gas Piping

General Instructions .................................19

Pipe Sizing Procedure - Example ............20

Water Piping

General Instructions .................................21

Pressure Relief Valve...............................21

Freeze Protection.....................................21

Freeze Protection Piping ................................22

Recommended Piping for Basic Installation...23 Recommended Piping for

Circulation Systems........................................24

Optional Piping for Circulation Systems.........25

Flue Terminal Clearances (ANS Z21.10.3 • CSA 4.3

)...................... 26, 27

Additional Clearances - Vent Trminal .............28

High Altitude Installations ...............................29

Connecting Multiple Water Heaters................29

Remote Controller Installation

Location....................................................30

Configurations ..........................................30

Cable Lengths and Size ...........................30

Mounting on the wall ................................

Connecting to the R75LSe, R94LSe, R98LSe,

and R98LSe-ASME

.....................................

Connecting to the R63LSe .......................

Operating Instructions ....................................33

Technical Data

Pressure Drop Curve......................................34

Outlet Flow Data.............................................34

Space Heating ................................................35

Dimensions.....................................................36

Ladder Diagram..............................................37

Consumer Support

Warranty Information......................................38

Limited Warranty ..................................... 38, 39

Table of Contents

This model has been built in accordance with the requirements of the ASME Boiler and Pressure Vessel Code and have received the Certificate of Authorization from the National Board. The heat exchanger on this unit has the NB and HLW stamps

R98LSe-ASME

6,7

VA Series Outdoor LS Manual 3

Specifications

Model R63LSe R75LSe R94LSe R98LSe

R98LSe-

ASME

Minimum Gas Consumption Btu/h 22,200 15,000 19,000

Maximum Gas Consumption Btu/h 150,000 199,000 180,000 237,000

Hot water capacity (Min - Max) *

0.6 - 6.3 GPM

(2.3 - 24 L/min)

0.6 - 7.5 GPM

(2.3 - 28 L/min) L/min)

0.6 - 9.4 GPM

(2.3 - 35.5

0.6 - 9.8 GPM

(2.3 - 37 L/min)

Hot water capacity, (45ºF rise)

5.3 GPM

(20 L/min)

6.6 GPM

(25 L/min)

7.4 GPM

(28 L/min)

8.7 GPM

(33 L/min)

Default Temperature Setting (no controller) 120º F (49º C)

Remote Controller Default Temperature Setting 104º F (40º C)

Maximum Temp Setting (Commercial **) 160º F (71º C) 185º F (85º C)

Maximum Temp Setting (Residential) 140º F (60º C)

Minimum Temperature Setting 98º F (37º C)

Weight

36.4 lb (17 kg)

46 lb

(21 kg)

55 lb

(25 kg)

Efficiency Rating

Noise level 49 dB (A)

Electrical Consumption

Normal 36 W 50 W 55 W 72 W

Standby

Anti-frost Protection

74 W 100 W 116 W

By-Pass Control Fixed Electronic

Minimum Gas Supply Pressure

Natural Gas 5.0 inch W.C.

Propane 8.0 inch W.C.

Maximum Gas Supply Pressure

Natural Gas 10.5 inch W.C.

Propane 13.5 inch W.C.

Type of Appliance Temperature controlled continuous flow gas hot water system.

Operation With or without remote controls, mounted in kitchen, bathroom, etc.

Approved Gas Type Natural Gas or Propane - Ensure unit matches gas type it's being installed on.

Connections Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4" MNPT

Ignition System Direct Electronic Ignition

Electric Connections Appliance: AC 120 Volts, 60Hz. Remote Control: DC 12 Volts (Digital)

Water Temperature Control Simulation Feedforward and Feedback.

Water Supply Pressure Minimum Water Pressure: 20 PSI (Recommended 30-80 PSI for maximum performance)

Maximum Water Supply Pressure 150 PSI

Remote Control Cable Non-Polarized Two Core Cable (Minimum 22 AWG)

2 W

Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prio

** for commercial and hydronic applications requiring higher temperatures.

r notice.

The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the purpose of input adjustment.

* Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature.

83.0%

4 VA Series Outdoor LS Manual

WARNING

Safety Behaviors and Practices

Keep the area around the appliance clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

Any alteration to the appliance or its controls can be dangerous and will void the warranty.

Always check the water temperature before entering a shower or bath.

Safety Definitions

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and

others.

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It may also be used to alert against unsafe practices.

DANGER

CAUTION

WARNING

Consumer Safety Information

Safety Features

Overheat: The appliance will automatically shut down when the appliance exceeds a predetermined temperature.

Flame Failure: The appliance will automatically shut down if the burner flame is extinguished.

Power Failure: The appliance will cut off the gas if it loses electrical power.

Power Surge Fuse: A glass fuse protects against overcurrent. If the fuse blows then all indicator lamps will be off.

Fusible Link: In case the overheat feature does not prevent the temperature from rising then the fusible link will break shutting off the appliance.

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VA Series Outdoor LS Manual 5

The Rinnai water heater is one of the most advanced water heaters available. It provides a continuous supply of hot water at a preset temperature. This appliance is direct vent where air is brought in from the outside and combustion gases are exhausted to the outside.

While electricity, water, and gas supplies are connected, the Rinnai water heater produces hot water whenever a hot water tap is open.

Ignition is electronic. There is no pilot light consuming gas while the water heater is not being used. The gas burner lights automatically when the hot water tap is opened and goes out when the tap is closed.

Installation of the remote controller is highly recommended. The remote controller can set the temperature within a specific range and can provide error codes to diagnose any problems.

The temperature of the outgoing hot water is constantly monitored. The Rinnai water heater may adjust the water flow in order to maintain the temperature setting. The water flow may vary from summer to winter due to the difference in ground water temperature.

Description of Operation

Features Available on Remote Controllers

The MC-91-1US remote controller is supplied with the appliance. Additional functions are available through the use of optional controllers.

Operating Instructions

Features

MC-91

MC-100

BC-100

MC-502

Description

Call

Sends a short series of beeps to all controllers in the system. It is

not an intercom.

Clock

12 hour AM/PM clock.

Function

Used on this model to set the clock or sound volume.

In Use Indicator

Indicates that hot water is being supplied (i.e. a hot water tap is

open)

ON/OFF Button

Used to turn the water heater ON or OFF.

Power Save

Allows the remote controller to be in an energy saving mode.

Priority Button / Indicator

Indicates that this controller is setting the temperature . Priority

can be switched to another controller by pressing its Priority Button when no hot water is running.

Sound Volume

Used to adjust the voice prompt volume.

Temperature Display

Shows the temperature setting.

Thermostat

Increases or decreases the temperature setting.

Water Smart / Bath Fill Button / Indicator

Used to select the Water Smart / Bath Fill Function to fill a bath

with a predetermined volume of water.

Water Volume

Used to select the water volume for the Water Smart / Bath Fill

Function.

MCC-91

Error Codes

When a fault is detected an error code flashes at the temperature

display on models MC-91, MCC-91, and MC-502; and flashes at the clock display on models MC-100 and BC-100.

6 VA Series Outdoor LS Manual

Remote Controllers - Models

Temperature

Display

Thermostat

Priority

Indicator

Priority

Button

ON/OFF

Button

In Use

Indicator

Temperature

Display

Thermostat

In Use

Indicator

Priority

Indicator

Priority

Button

ON/OFF

Button

MC-91-1US & MCC-91-1US

MC-502RC-1US-S * (Wireless)

* Requires the transceiver,

MC-502RC-1US-M, to be connected to the water heater.

Refer to the MC-502RC-1US-S manual and the Wireless Controller Installation Instructions for complete details on features, operation, and installation.

Dimensions (inches): 3.5 W x 4.75 H x 0.75 D

Dimensions (inches): 4.33 W x 5.90 H x 1.16 D

The MC-91 controller allows a maximum temperature setting of 140º F. The MCC-91 controller is for commercial and hydronic applications requiring higher temperatures. When the MCC-91 controller is connected, these higher temperatures are available on all controller models in the system. Refer to the section on temperature ranges.

VA Series Outdoor LS Manual 7

Temperature

Display

Thermostat

In Use

Indicator

Priority Button

and Indicator

ON/OFF

Button

Clock

Call

Function

Temperature

Display

Thermostat

ON/OFF

Button

In Use

Indicator

Clock

Call

Priority

Button and

Indicator

Water Smart

Bath Fill Indicator

Water Smart

Bath Fill

Button

Power Save

Water Volume

Sound Volume

MC-100V-1US

BC-100V-1US

The BC-100V controller is water resistant. Avoid splashing the controller.

NOTICE

Remote Controllers - Models

Dimensions (inches): 5.0 W x 4.75 H x 0.75 D

Dimensions (inches): 8.0 W x 4.125 H x 0.875 D

8 VA Series Outdoor LS Manual

Setting the Temperature

1. Press the “Priority button” on the remote controller. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water.

While any hot water is being provided, the temperature setting can only be adjusted between 98º F and 110º F.

NOTICE

Hot water can be dangerous, especially for infants or children, the elderly, or infirm. There is hot water scald potential if the thermostat is set too high.

Water temperatures over 125º F (51º C) can cause severe burns or scalding resulting in death.

Hot water can cause first degree burns with exposure for as little as:

3 seconds at 140º F (60º C)

20 seconds at 130º F (54º C)

8 minutes at 120º F (48º C)

Test the temperature of the water before placing a child in the bath or shower.

Do not leave a child or an infirm person in the bath unsupervised.

The priority can only be changed

while no hot water is running.

Temperature Options Without a Remote Controller

The default temperature setting for this appliance installed without a remote controller is 120º F (49º C). If desired the temperature setting can be changed to 140º F (60º C) by adjustment of a dip switch.

Set dip switch 5 to ON to obtain 140º F water temperature setting.

Set dip switch 5 to OFF (default) to obtain 120º F water temperature setting.

F F

Switch No.

120º F (49º C) 140º F (60º C)

2. Press the or buttons to obtain the desired temperature setting.

All hot water sources are able to

provide water at this temperature setting until it is changed again at this or another remote controller.

Check local codes for the maximum water temperature setting allowed when used in nursing homes, schools, day care centers, and all other public applications.

NOTICE

If a newly installed unit with a remote controller has not been powered for at least 6 hours then the temperature will return to the default setting of 104º F (40º C) if power is interrupted.

NOTICE

There may be a variation between the temperature displayed on the remote controller and the temperature at the tap due to weather conditions or the length of pipe to the water heater.

NOTICE

Switch No.

WARNING

DO NOT adjust the other dip switches unless specifically instructed to do so.

DANGER

VA Series Outdoor LS Manual 9

Setting the Sound Volume (Voice Prompt)

BC-100V Press the “Sound Vol.” button to

adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the button cycles through the volume levels in the order below.

Setting the Clock

MC-100V Press the “Function” button to

adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the

or button cycles through the volume levels in the order below.

MC-100V Press the “Function” button twice within 10 seconds to set the clock. Press the or

button to reach the desired time. The clock on the BC-100V automatically shows

the time which has been set on the MC-100V.

Temperature Ranges

This water heater will attempt to provide hot water at the temperature even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time. The available temperatures for a given model are provided below.

Suggested temperatures are

Kitchen 120 ºF (49º C) Shower 98º - 110º F (37º - 43º C) Bath Fill 102º - 110º F (39º - 43º C)

These temperatures are suggestions only.

Temperature lower than 98º F (37º C) can be obtained at the tap by mixing with cold water.

To change the temperature scale from Celsius to Fahrenheit or vice versa, press and hold the “On/Off” button for 5 seconds while the water heater is OFF.

* These settings require the MCC-91 controller. When the MCC-91 controller is connected, these higher

temperature If a space heating application requires higher than 140º F then a mixing valve shall be installed to temper the water temperature to 140º F or less for domestic use.

are available on all controller models in the system.

Model Temperature Settings Available (ºF)

* * *

R63LSe 98 100 102 104 106 108 110 115 120 125 130 135 140

150 160

R75LSe 98 100 102 104 106 108 110 115 120 125 130 135 140

150 160

R94LSe R98LSe

R98LSe-ASME

98 100 102 104 106 108 110 115 120 125 130 135 140

150 160 185

Temp in Celsius ºC 37 38 39 40 41 42 43 46 49 52 54 57 60

66 71 85

Medium Volume

(default)

High Volume

Off Volume

(beep)

Off Sound

(no beep)

Low Volume

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10 VA Series Outdoor LS Manual

Setting the Water Volume

2. Press the “Temp” or buttons to obtain the desired temperature setting.

3. Press the “Water Vol.” or buttons to obtain the desired water volume in gallons.

To Prevent

Over Filling

Be careful not to overfill the bath. An average bath volume is 60 gallons. When filling the bath using this function for the first time:

Monitor and remain by the bath while the water is running.

Use a low bath fill volume less than 25 gallons

NOTICE

The default volume is set to 25 gallons. The volume can be set between 10 and 120 gallons.

Using the Water Smart / Bath Fill Function

Overview

This function is exclusive to the BC-100V remote controller. The bath fill function allows the consumer to fill a tub with a preset volume of water at a preset temperature. This is done by pressing the bath fill button on the BC-100V controller while no hot water is flowing and then opening only the hot water tap. The water heater will cease the hot water flow when the preset volume has been reached. The hot water tap should then be closed and the bath fill button pressed.

The temperature settings for the bath fill function are limited to those in the table below.

Power

Loss

If power is lost during the bath fill function, the water heater will shut down but the water will continue to flow. When power returns, the water shuts off and Error Code 03 appears on the controller.

If power is lost after the bath has filled but before the bath fill function button is de-selected, then the water will not flow during the power loss or after the power is returned. Once power returns, close the hot water tap and de-select the bath fill function. No error code appears.

NOTICE

Multiple

Water

Heaters

The bath fill function will not work properly if it is connected to multiple water heaters. The tub will overfill because the bath fill function is not able to measure the water volume when connected to multiple water heaters.

NOTICE

Bath Fill Temperature Settings Available

ºF 98 100 102 104 106 108 110 115 120

ºC 37 38 39 40 41 42 43 46 49

Anti-scald

Fixtures

Do not use with single handle fixtures that have anti-scald features built into them. These fixtures allow a predetermined amount of cold water which is not taken into account by the bath fill function.

NOTICE

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VA Series Outdoor LS Manual 11

Filling the Tub

1. Press the “Water Smart / Bath Fill” button once. The button will illuminate, a tone will sound, and the word “Bath” will appear next to the temperature setting.

2. The voice prompt will announce “The hot water system is ready. Open the hot water tap.” Open the hot water tap. The “In Use” indicator will illuminate on all controllers. The hot water will begin to flow.

3. When the preset volume of water has been produced then

4. Turn off the bath hot water tap and push the Bath Fill button. The water heater will not allow hot water to flow from any source until the “Water Smart / Bath Fill” button is pushed. The button light will go out and the word “Bath” will disappear from the display.

HOT

COLD

ON!

To Stop the Bath Fill Before it Finishes

To stop the water flow during the Bath Fill function, press the “Water Smart / Bath Fill” button. The button will flash and the voice prompt will announce, “Hot water is not available. Turn off all hot water taps and push the Bath Fill button.” Follow the voice prompt instructions.

NOTICE

the water flow will cease

the “Water Smart / Bath Fill” button will flash

a tone will sound

the voice prompt will announce, “Bath fill is complete. Turn off the bath hot water tap and push the Bath Fill button.”

When

Other Taps

Are Open

During the bath fill function, any hot water flowed at other locations, subtracts from the total amount of water for the bath. For example if the bath fill function is set for 50 gallons and 5 gallons of hot water are used at other locations during the fill period then the bath will only fill with 45 gallons.

NOTICE

HOT

COLD

ON!

Using the Water Smart / Bath Fill Function

Setting Controller to Mute

To eliminate the beeps when keys are pressed or to turn the beeps back on, press and hold both the and buttons until a beep is heard (approximately 5 seconds).

Models MC-91 and MCC-91

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12 VA Series Outdoor LS Manual

WARNING

Turn off the electrical power supply, the manual gas valve and the manual water control valve whenever servicing the unit.

Repairs should be performed by a qualified service technician. The appliance should be inspected annually by a qualified service technician. Verify proper operation after servicing.

Cleaning

It is imperative that control compartments, burners, and circulating air passage ways of the appliance be kept clean.

Clean as follows:

1. Turn off and disconnect electrical power. Allow to cool.

2. Remove and clean the water inlet filter.

3. Remove the front panel by removing 4 screws.

4. Use pressurized air to remove dust from the main burner, heat exchanger, and fan blades. Do not use a wet cloth or spray cleaners on the burner. Do not use volatile substances such as benzene and thinners. They may ignite or fade the paint.

5. Use soft dry cloth to wipe cabinet.

Air Intake and Exhaust

The air intake and exhaust should be inspected at least annually for blockages or damage.

Motors

Motors are permanently lubricated and do not need periodic lubrication. Keep fan and motor free of dust and dirt by cleaning annually.

Remote Controller

Use a soft damp cloth to clean the remote controller. Do not use solvents.

Lime/Scale Buildup

If you receive Error Code “LC”, refer to the procedure,

Flushing the Heat Exchanger. Refer to the section on Water Quality to see if your water needs to be treated

or conditioned. (When checking maintenance code history “00” is substituted for “LC”.)

Visual Inspection of Flame

The burner must flame evenly over the entire surface when operating correctly. The flame must burn with a clear, blue, stable flame. See the parts breakdown of the burner for the location of the view ports.

The flame pattern should be as shown in the figures below.

Snow Accumulation

Keep the area around flue terminal free of snow and ice. The appliance will not function properly if the intake air or exhaust is impeded (blocked or partially blocked) by obstructions.

Maintenance

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